How can you determine your longitude?

How can you determine your longitude?

To measure the longitude you must place the ruler diagonally on the west and east meridians with the ends of the 2 ½ minute ruler touching both meridians. The lines of longitude on your map will be the east and west meridians of your location.

How do you find the longitude of a place when given time?

Each degree is divided into minutes and minutes into seconds. The Earth takes 24 hours to complete one rotation or to cover 360° of longitudes. This means that the Earth covers 15° of longitudes every hour. One degree of longitude takes 4 minutes (1 hour = 60 minutes, divided by 15° per hour = 4 minutes per longitude).

How would you tell your latitude if you were without a GPS in the Southern Hemisphere?

There is no equivalent of Polaris in the South, but to find your latitude if you are in the Southern hemisphere you can use a constellation called the Southern cross (illustrated on the flag of Australia) and two stars called the Southern Pointers.

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How do you find the difference between two latitude and longitude?

For this divide the values of longitude and latitude of both the points by 180/pi. The value of pi is 22/7. The value of 180/pi is approximately 57.29577951. If we want to calculate the distance between two places in miles, use the value 3, 963, which is the radius of Earth.

How many longitudes are there on the globe?

360 degrees
There are 360 degrees of longitude (+180° eastward and −180° westward.). The longitude line of 0 degrees is known as the Prime Meridian and it divides the world into the Eastern Hemisphere and the Western Hemisphere.

Can you locate yourself by just using latitude?

There are many methods that can be used to locate ones position on the surface of the earth. The method that is universally accepted involves using latitude and longitude, which can provide a highly precise means for locating any place on the planet.

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Why is determining longitude so difficult?

Longitude is much harder to calculate than latitude. The Earth rotates 360° per day, which is 15° per hour, and so there’s a direct relationship between longitude and the time that the Sun rises and sets.

How do you find the difference in time between two longitudes?

The time difference between each longitude (each degree) is 4 minutes. So if it is 12 noon at Greenwich (0 degree), it would be 12:04 pm at 1 degree meridian and so on. In India, the standard meridian is 82-and-half degree.